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014 and p?=?.047, respectively). In each group, the Periotest values of TE were significantly lower than SP (p?=?.036 and p?=?.033, respectively). The Periotest values of BL and TE were significantly lower in the group of under-dimensioned drilling than standard drilling (p?=?.002 and p?=?.02, respectively). In the RFA, no statistical significances were found in implants between two groups and between implants in each group. In each group, the push-out values of BL and TE were significantly higher than SP (p?=?.006 and p?=?.049, respectively). Conclusion: Hybrid self-tapping implants could achieve a high primary stability which predicts them for use in low-density [http://www.selleckchem.com/products/sch772984.html SCH772984 mw] bone. However, there is still a debate to clarify the influence of under-dimensioned drilling on primary stability. ""The purpose of this study was to compare patient-reported outcomes for maxillary implant-supported overdentures with and without palatal coverage. Twenty-one maxillary edentulous patients (six [http://en.wikipedia.org/wiki/Ritonavir Ritonavir] women, 15 men) were included. In total, 42 implants were inserted in the anterior maxilla. All patients received implant-supported overdentures on two retentive anchors with palatal coverage for 2 months. Thereafter, patient satisfaction was assessed by means of questionnaires capturing the oral health impact profile (OHIP) on functional limitation, physical pain, psychological discomfort, physical, psychological and social disability, and handicap. Additionally, cleaning ability, general satisfaction, speech, comfort, esthetics, stability, and chewing ability were rated. Subsequently, palatal coverage was reduced, and the patients wore the overdentures for another 2 months. Patient satisfaction was obtained in the same way as above, and the evaluated parameters were compared for the two overdenture designs. There were no significant differences between implant-supported overdentures with and without palatal coverage for any of the OHIP domains. The evaluation of additional parameters revealed significantly higher patient satisfaction for esthetics (mean difference 8.8?mm?��?24.6) and taste (mean difference 28.4?mm?��?29.9) without palatal coverage, p?[http://www.selleckchem.com/products/dabrafenib-gsk2118436.html selleck inhibitor] and without palatal coverage. ""Studies have shown that bone quality at the implant recipient site can influence primary stability. The aims of this study were to explore the quantitative estimation of the primary stability of implants preoperatively using CT values and to examine the effect of different implant designs with recommended socket preparation on primary stability. Forty-four fresh porcine femoral heads were prepared. The bone surrounding implant sockets was preoperatively evaluated by helical CT. Forty-four implants (�� 4.